Arad (-roaˈrad; ; ) is the capital city of Arad County, in western Romania, in the Crişana region, on the river Mureş.

An important industrial center and transportation hub, Arad is also the seat of a Romanian Orthodox archbishop and features two universities, a Romanian Orthodox theological seminary, a training school for teachers and a music conservatory. The city has a population of approximately 172,000, making it the 13th largest city in Romania. Arad is the third largest city in the western part of the country, behind Timişoara and Oradea.